Or ngk brk8eix. Thats what im using and they are great.
I went with iridium's,and like the millage ,performance...
With the BKR5EKU plugs I got apx 27-29 mpg. All stock except for a neuspeed chip.
i use NGK G-power plugs in all my vehicles and they are the best ive found. they are about $2-3 tops and last forever, i have no complaints about the performance either.
I got on my last long trip 29-30 mpg doing 75-80 mph
OEM plugs which are NGK BKR5EKU used to get 26-28mpg @ 192k miles
after you get everything fixed don't run the oem plugs, they are too hot, if you want to run iridiums then get plugs that are 2 heat ranges colder and you'll be better off. you can also run copper plugs, i run ngk coppers that are 2 heat ranges colder and have had no issues at all.
I get a random misfire at idle, but nothing in boost surprisingly. Hey, I'm just goin with what works. And Im running 19 lbs on a T3/T4.
I changed over to the BKR7E model to see how they worked. I wasn't impressed because after that the RPMs on my tach wouldn't stay steady at idle.
I changed the plugs thinking that what it was. (it was not). I thought it was the coil packs so I bought a new set of four, which I have NOT installed yet.
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